Furnace for the manufacture of iron direct from the ore



(No Model.)

0. ADAMS.

, FURNACE FOR THE MANUFACTURE OF IRON DIRECT FROM THE ORE. No. 310,164. Patented Jan. 6,1885.

W %%W W 560% UNITED STATES PATENT EEioE.

CHARLES ADAMS, OF ALLEGHENY CITY, PENNSYLVANIA.

FURNACE FOR THE MANUFACTURE OF IRON DIRECT FROM THEORE.

SPECIFICATION forming part of Letters Patent. No. 310,164, dated January 6, 1825.

Application filed January 3], 19:4. (Yo model.)

T (1. whom it may concern.-

Be it known that I, CHAS. ADAMS, of Allegheny City, in'the county of Allegheny Direct from the Ore; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in furnaces for the manufacture of iron and steel direct from the ore or other oxides of iron; and it consists in the combination of a blast furnace, a puddlingfurnace connected thereto by means of a flue, so thatthe products of combastion of the cupola can be passed through the puddling-furnace, a boiler for the generation of vapor, and a perforated pipe by means of which the gas may be introduced into the molten ore which has been run from the cupola into the puddling-furnace.

In the accompanying drawings, Figure 1 represents an apparatus, partly in section, by means of which my invention is carried into operation. Fig. 2 is a sectional view of the lines beneath the gas-generator and boiler.

A represents an ordinary blast-furnace, hav ing the flue D leading from its top and connecting with the fire-box of the puddlingfurnace B, which is placed in anydesircd re lation thereto. This blast-furnace A is provided with the damper E at its top, for pre venting the escape of the products of combustion at this point, and thus compelling them to pass through the flue 1) into the puddling-furnace. The iron ore or oxides of iron have to be smelted in the blast-furnace along with lime or dolomite, the quantity used depending upon the amount of foreign matter present in the ore. After the ore has been melted in the blast A it is run through the trough or pipe G into the puddirig-furnace 1;.

v Through the top of this furnace B is a suitable opening which maybe tightly closed or through which the escaping gases can make their escape into the air, as may be desired. The products of combustion from the blast-furnace, passing through the flue D into the paddlingand under the boiler, as shown.

furnace, keeps the melted iron-ore in a melted condition. The piuldling furnace will be provided with a fire chamber and grate in the usual manner, so that all the heat used may be produced upon the grate independent of the blastfurnace, it so desired. It is the intention, however, to place these two furnaces side by side and thus utilize the waste products of combustion from the blast-furnace to their full extent.

Located at the other end of the puddlingfurnace from the fire-chamber are the two boilers 0, one of which is for oil and the other for water. The products of combustion from the puddling-furnaee passes through the flue In this flue are placed suitable dampers, I, which are operated by a suitable lever, so that the products of combustion can be made to heat both boilers at once, or only one, as may be preferred. In the water-boiler steam is'generated for the purpose of working the blower and hammer. In the boiler for holding the oil vapor is generated for reducing purposes. The pressure of the gas generated in this boiler will be sufficient to force the gas. into the reducingchamber of the puddling-furnuce and through the molten ore without the help of steam or other agent in any way. Beyond the boiler is placed the stack Q, which is also provided with means at its top for regulating the temperature of the furnace. This means for regulating the temperature of the furnace consists of a damper or valve which is placed upon the top of the stack in the usual manner, and which serves to prevent the too free escape of the products of combustion. 13y partially closing this valve or damper the products of combustion can be held a longer time in the furnace, and thus the heat regulated at will. After the ore has been sufficiently melted in the blast-furnace it is run through the trough or pipe 0 into the puddling-furnace. The jointed pipe R,which is connected with the top of the boiler for the generation of gas, has its perforated end S,'lowered by means of the lever T, down into the melted iron ore to any desired depth. The lower end of this pipe has a number of line perforations made through it, so that the vapor will be forced outward from the pipe in every direction. In the pipe is placed a suitable stop cock, 1 by means of which the force and quantity of gas can be regulated at will. The perforated end of the pipe having been lowered into the melted ore and the gas turned on, avery intense heat is produced by the combustion of the This intense heat, it not carefully applied, would result in both damaging the furnace and the metal product. The gas permeates the molten charge at a very high temperature, and combines with the oxygen of the same, generating heat in the furnace and escaping as carbonic-acid gas, &c. The phosphorus and sulphur that may be in the ore bein g in a favorable condition is eliminated by the hydrogen of the gas as phosphureted and sulphureted hydrogen.

Having thus described my invention, I claim 1. The combination of a blastfurnace, at puddling-furnace connected thereto by means of a flue, so that the] products of combustion of the blast can be passed through the puddling-furnace. a boiler for the generation of gas, and a jointed perforated pipe and connection by means of which the gas may be introduced in the molten iron ore in the puddling-furuace, substantially as shown;

2. The combination of the paddling-furnace having an opening through its top, the gas-generator arranged in suchrelation to the furnace as to be heated by the Waste products of combustion, the pipe R, havingthe perfo rated end S, and the lever T, connected to the pipe, substantially as described.

The combination of a pudclling-furnace, a vapor-generator, and a steam-boiler with the escape-fines for the products of combustion, located beneath the said gas generator and steamhoiler, and the two valves connected to the same lever, whereby the passage of the products of combustion under the vapor-generator and boiler is controlled, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES ADAMS.

Vitnesses:

A. J. PENTECOST, J r., 11. E.'SA.FFORD. 

